553843406121 has 16 divisors (see below), whose sum is σ = 739103448384. Its totient is φ = 368906287104.

The previous prime is 553843406087. The next prime is 553843406167. The reversal of 553843406121 is 121604348355.

It is not a de Polignac number, because 553843406121 - 2⁶ = 553843406057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (553843406021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19267866 + ... + 19296588.

It is an arithmetic number, because the mean of its divisors is an integer number (46193965524).

Almost surely, 2^553843406121 is an apocalyptic number.

It is an amenable number.

553843406121 is a deficient number, since it is larger than the sum of its proper divisors (185260042263).

553843406121 is a wasteful number, since it uses less digits than its factorization.

553843406121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34120.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 553843406121 in words is "five hundred fifty-three billion, eight hundred forty-three million, four hundred six thousand, one hundred twenty-one".